--- /dev/null
+/*
+ * GTK+ MiM input module
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gtk/gtkimcontext.h>
+#include <gtk/gtkimmodule.h>
+#include <gdk/gdkkeysyms.h>
+#include <string.h>
+
+#include "im-extra-intl.h"
+
+
+GType type_mim = 0;
+
+enum { MIM_MAX_COMPOSE_LEN = 3 };
+
+typedef struct
+{
+ guint keys[MIM_MAX_COMPOSE_LEN + 1]; /* 0-terminated */
+ gchar *normal;
+ gchar *initial;
+ gchar *final;
+ gboolean is_terminator; /* true if a preceding possible final form
+ should be final */
+}
+ComposeSequence;
+
+/* like GtkIMContextSimple */
+static guint compose_buffer[MIM_MAX_COMPOSE_LEN + 1];
+static int n_compose = 0;
+static ComposeSequence *preceding_possible_final_form = NULL;
+
+static ComposeSequence mim_compose_seqs[] =
+{
+ { { GDK_a, 0, 0, 0, }, "אַ", NULL, NULL, FALSE, },
+ { { GDK_A, 0, 0, 0, }, "א", NULL, NULL, FALSE, },
+ { { GDK_b, 0, 0, 0, }, "ב", NULL, NULL, FALSE, },
+ { { GDK_B, 0, 0, 0, }, "בֿ", NULL, NULL, FALSE, },
+ { { GDK_c, 0, 0, 0, }, "צ", NULL, "ץ", FALSE, },
+ { { GDK_C, 0, 0, 0, }, "ץ", NULL, NULL, FALSE, },
+ { { GDK_g, 0, 0, 0, }, "ג", NULL, NULL, FALSE, },
+ { { GDK_d, 0, 0, 0, }, "ד", NULL, NULL, FALSE, },
+ { { GDK_h, 0, 0, 0, }, "ה", NULL, NULL, FALSE, },
+ { { GDK_i, 0, 0, 0, }, "י", "אי", NULL, FALSE, },
+ { { GDK_I, 0, 0, 0, }, "יִ", "איִ", NULL, FALSE, },
+ { { GDK_v, 0, 0, 0, }, "װ", NULL, NULL, FALSE, },
+ { { GDK_z, 0, 0, 0, }, "ז", NULL, NULL, FALSE, },
+ { { GDK_H, 0, 0, 0, }, "ח", NULL, NULL, FALSE, },
+ { { GDK_t, 0, 0, 0, }, "ט", NULL, NULL, FALSE, },
+ { { GDK_T, 0, 0, 0, }, "תּ", NULL, NULL, FALSE, },
+ { { GDK_y, 0, 0, 0, }, "י", NULL, NULL, FALSE, },
+ { { GDK_x, 0, 0, 0, }, "כ", NULL, "ך", FALSE, },
+ { { GDK_X, 0, 0, 0, }, "ך", NULL, NULL, FALSE, },
+ { { GDK_l, 0, 0, 0, }, "ל", NULL, NULL, FALSE, },
+ { { GDK_m, 0, 0, 0, }, "מ", NULL, "ם", FALSE, },
+ { { GDK_M, 0, 0, 0, }, "ם", NULL, NULL, FALSE, },
+ { { GDK_n, 0, 0, 0, }, "נ", NULL, "ן", FALSE, },
+ { { GDK_N, 0, 0, 0, }, "ן", NULL, NULL, FALSE, },
+ { { GDK_s, 0, 0, 0, }, "ס", NULL, NULL, FALSE, },
+ { { GDK_S, 0, 0, 0, }, "ת", NULL, NULL, FALSE, },
+ { { GDK_e, 0, 0, 0, }, "ע", NULL, NULL, FALSE, },
+ { { GDK_E, 0, 0, 0, }, "ײ", "אײ", NULL, FALSE, },
+ { { GDK_o, 0, 0, 0, }, "אָ", NULL, NULL, FALSE, },
+ { { GDK_O, 0, 0, 0, }, "ױ", "אױ", NULL, FALSE, },
+ { { GDK_u, 0, 0, 0, }, "ו", "או", NULL, FALSE, },
+ { { GDK_U, 0, 0, 0, }, "וּ", "אוּ", NULL, FALSE, },
+ { { GDK_p, 0, 0, 0, }, "פּ", NULL, NULL, FALSE, },
+ { { GDK_P, 0, 0, 0, }, "פ", NULL, NULL, FALSE, },
+ { { GDK_w, 0, 0, 0, }, "ש", NULL, NULL, FALSE, },
+ { { GDK_W, 0, 0, 0, }, "שׂ", NULL, NULL, FALSE, },
+ { { GDK_f, 0, 0, 0, }, "פֿ", NULL, "ף", FALSE, },
+ { { GDK_F, 0, 0, 0, }, "ף", NULL, NULL, FALSE, },
+ { { GDK_k, 0, 0, 0, }, "ק", NULL, NULL, FALSE, },
+ { { GDK_K, 0, 0, 0, }, "כּ", NULL, NULL, FALSE, },
+ { { GDK_r, 0, 0, 0, }, "ר", NULL, NULL, FALSE, },
+ { { GDK_Y, 0, 0, 0, }, "ײַ", "אײַ", NULL, FALSE, },
+ { { GDK_minus, 0, 0, 0, }, "־", NULL, NULL, TRUE, },
+ { { GDK_apostrophe, 0, 0, 0, }, "'", NULL, NULL, TRUE, },
+ { { GDK_comma, 0, 0, 0, }, ",", NULL, NULL, TRUE, },
+ { { GDK_s, GDK_h, 0, 0, }, "ש", NULL, NULL, FALSE, },
+ { { GDK_t, GDK_s, 0, 0, }, "צ", NULL, "ץ", FALSE, },
+ { { GDK_t, GDK_z, 0, 0, }, "צ", NULL, "ץ", FALSE, },
+ { { GDK_z, GDK_h, 0, 0, }, "זש", NULL, NULL, FALSE, },
+ { { GDK_a, GDK_y, 0, 0, }, "ײַ", "אײַ", NULL, FALSE, },
+ { { GDK_o, GDK_y, 0, 0, }, "ױ", "אױ", NULL, FALSE, },
+ { { GDK_o, GDK_i, 0, 0, }, "ױ", "אױ", NULL, FALSE, },
+ { { GDK_d, GDK_j, 0, 0, }, "דזש", NULL, NULL, FALSE, },
+ { { GDK_e, GDK_y, 0, 0, }, "ײ", "אײ", NULL, FALSE, },
+ { { GDK_apostrophe, GDK_apostrophe, 0, 0, }, "“", NULL, NULL, TRUE, },
+ { { GDK_comma, GDK_comma, 0, 0, }, "„", NULL, NULL, TRUE, },
+ { { GDK_k, GDK_h, 0, 0, }, "כ", NULL, "ך", FALSE, },
+ { { GDK_c, GDK_h, 0, 0, }, "כ", NULL, "ך", FALSE, },
+ { { GDK_u, GDK_v, 0, 0, }, "וּװ", "אוּװ", NULL, FALSE, },
+ { { GDK_u, GDK_u, 0, 0, }, "וּו", "אוּו", NULL, FALSE, },
+ { { GDK_u, GDK_i, 0, 0, }, "ויִ", "אויִ", NULL, FALSE, },
+ { { GDK_u, GDK_y, 0, 0, }, "וּי", "אוּי", NULL, FALSE, },
+ { { GDK_v, GDK_u, 0, 0, }, "װוּ", NULL, NULL, FALSE, },
+ { { GDK_y, GDK_i, 0, 0, }, "ייִ", NULL, NULL, FALSE, },
+ { { GDK_i, GDK_i, 0, 0, }, "יִיִ", "איִיִ", NULL, FALSE, },
+ { { GDK_i, GDK_y, 0, 0, }, "יִי", "איִי", NULL, FALSE, },
+ { { GDK_E, GDK_i, 0, 0, }, "ײיִ", "אײיִ", NULL, FALSE, },
+ { { GDK_i, GDK_e, 0, 0, }, "יִע", "איִע", NULL, FALSE, },
+ { { GDK_i, GDK_a, 0, 0, }, "יִאַ", "איִאַ", NULL, FALSE, },
+ { { GDK_i, GDK_o, 0, 0, }, "יִאָ", "איִאָ", NULL, FALSE, },
+ { { GDK_t, GDK_s, GDK_h, 0, }, "טש", NULL, NULL, FALSE, },
+};
+
+
+static const guint16 mim_compose_ignore[] =
+{
+ GDK_Shift_L,
+ GDK_Shift_R,
+ GDK_Control_L,
+ GDK_Control_R,
+ GDK_Caps_Lock,
+ GDK_Shift_Lock,
+ GDK_Meta_L,
+ GDK_Meta_R,
+ GDK_Alt_L,
+ GDK_Alt_R,
+ GDK_Super_L,
+ GDK_Super_R,
+ GDK_Hyper_L,
+ GDK_Hyper_R,
+ GDK_Mode_switch,
+};
+
+
+static void
+clear_compose_buffer ()
+{
+ memset (compose_buffer, 0, sizeof (compose_buffer));
+ n_compose = 0;
+}
+
+
+/* handles null case */
+static void
+commit_preceding_possible_final_form (GtkIMContext *context,
+ gboolean is_final)
+{
+ if (preceding_possible_final_form != NULL)
+ {
+ if (is_final)
+ g_signal_emit_by_name (context, "commit",
+ preceding_possible_final_form->final);
+ else
+ g_signal_emit_by_name (context, "commit",
+ preceding_possible_final_form->normal);
+
+ preceding_possible_final_form = NULL;
+ }
+}
+
+/* returns the composed string iff keys exactly matches the compose
+ * sequence keys */
+static ComposeSequence *
+find_complete_compose_sequence (guint *keys)
+{
+ gint i, j;
+
+ for (i = 0; i < G_N_ELEMENTS (mim_compose_seqs); i++)
+ for (j = 0; j <= MIM_MAX_COMPOSE_LEN; j++)
+ {
+ if (keys[j] != mim_compose_seqs[i].keys[j])
+ break;
+ else if (keys[j] == 0 && keys[j] == mim_compose_seqs[i].keys[j])
+ return mim_compose_seqs + i;
+ }
+
+ return NULL;
+}
+
+
+/* returns the composed string iff keys is a substring thang of the compose
+ * sequence keys */
+static ComposeSequence *
+find_incomplete_compose_sequence (guint *keys)
+{
+ gint i, j;
+
+ for (i = 0; i < G_N_ELEMENTS (mim_compose_seqs); i++)
+ for (j = 0; j <= MIM_MAX_COMPOSE_LEN; j++)
+ {
+ if (keys[j] == 0 && mim_compose_seqs[i].keys[j] != 0)
+ return mim_compose_seqs + i;
+ else if (keys[j] != mim_compose_seqs[i].keys[j])
+ break;
+ }
+
+ return NULL;
+}
+
+
+static gchar *
+get_appropriate_string (ComposeSequence *comp_seq, gboolean is_initial)
+{
+ if (comp_seq == NULL)
+ return NULL;
+ else if (is_initial && comp_seq->initial != NULL)
+ return comp_seq->initial;
+ else
+ return comp_seq->normal;
+}
+
+
+/* is this a character that could appear in a mim word */
+static gboolean
+is_mim_word_character (gunichar uc)
+{
+ return (((uc >= 0x0590 && uc <= 0x5ff) || (uc >= 0xfb1d && uc <= 0xfb4f))
+ && g_unichar_isdefined (uc) && ! g_unichar_ispunct (uc));
+
+}
+
+
+static gboolean
+at_initial_position (GtkIMContext *context)
+{
+ gchar *text;
+ gchar *prevp;
+ gint cursor_index;
+ gunichar uc;
+
+ if (! gtk_im_context_get_surrounding (context, &text, &cursor_index))
+ return FALSE;
+
+ prevp = g_utf8_find_prev_char (text, text + cursor_index);
+ if (prevp == NULL)
+ return TRUE;
+
+ uc = g_utf8_get_char_validated (prevp, text + cursor_index - prevp);
+ g_return_val_if_fail (uc != (gunichar)(-1) && uc != (gunichar)(-2),
+ FALSE);
+
+ if (is_mim_word_character (uc))
+ return FALSE;
+ else
+ return TRUE;
+}
+
+
+static void
+mim_get_preedit_string (GtkIMContext *context,
+ gchar **str,
+ PangoAttrList **attrs,
+ gint *cursor_pos)
+{
+ ComposeSequence *comp_seq;
+ gboolean is_initial;
+ gchar *string;
+ gint len;
+
+ is_initial = at_initial_position (context)
+ && preceding_possible_final_form == NULL;
+
+ comp_seq = find_complete_compose_sequence (compose_buffer);
+ if (comp_seq == NULL)
+ string = "";
+ else
+ string = get_appropriate_string (comp_seq, is_initial);
+
+ if (preceding_possible_final_form != NULL)
+ *str = g_strdup_printf ("%s%s", preceding_possible_final_form->normal,
+ string);
+ else
+ *str = g_strdup (string);
+
+ len = strlen (*str);
+
+ if (attrs)
+ {
+ *attrs = pango_attr_list_new ();
+
+ if (len != 0)
+ {
+ PangoAttribute *attr;
+ attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
+ attr->start_index = 0;
+ attr->end_index = len;
+ pango_attr_list_insert (*attrs, attr);
+ }
+ }
+
+ if (cursor_pos)
+ *cursor_pos = len;
+}
+
+
+static void
+mim_reset (GtkIMContext *context)
+{
+ clear_compose_buffer ();
+ preceding_possible_final_form = NULL;
+ g_signal_emit_by_name (context, "preedit-changed");
+}
+
+
+static gboolean
+no_sequence_matches (GtkIMContext *context, GdkEventKey *event)
+{
+ gunichar uc;
+ gchar buf[7];
+
+ uc = gdk_keyval_to_unicode (event->keyval);
+ if (uc != 0)
+ {
+ buf[g_unichar_to_utf8 (uc, buf)] = '\0';
+ g_signal_emit_by_name (context, "commit", buf);
+ g_signal_emit_by_name (context, "preedit-changed");
+
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+
+static gboolean
+mim_filter_keypress (GtkIMContext *context,
+ GdkEventKey *event)
+{
+ ComposeSequence *comp_seq;
+ gboolean is_initial;
+ gint i;
+
+ if (event->type == GDK_KEY_RELEASE)
+ return FALSE;
+
+ /* don't filter key events with accelerator modifiers held down */
+ if (event->state
+ & (gtk_accelerator_get_default_mod_mask () & ~GDK_SHIFT_MASK))
+ return FALSE;
+
+ for (i = 0; i < G_N_ELEMENTS (mim_compose_ignore); i++)
+ if (event->keyval == mim_compose_ignore[i])
+ return FALSE;
+
+ is_initial = at_initial_position (context)
+ && preceding_possible_final_form == NULL;
+
+ /* '|' commits what we have */
+ if (event->keyval == GDK_bar && (n_compose > 0
+ || preceding_possible_final_form != NULL))
+ {
+ commit_preceding_possible_final_form (context, FALSE); /* non-final */
+
+ comp_seq = find_complete_compose_sequence (compose_buffer);
+ if (comp_seq != NULL)
+ {
+ g_signal_emit_by_name (context, "commit",
+ get_appropriate_string (comp_seq, is_initial));
+ clear_compose_buffer ();
+ }
+
+ g_signal_emit_by_name (context, "preedit-changed");
+ return TRUE;
+ }
+
+ compose_buffer[n_compose] = event->keyval;
+ n_compose++;
+
+ if (find_incomplete_compose_sequence (compose_buffer) != NULL)
+ {
+ g_signal_emit_by_name (context, "preedit-changed");
+ return TRUE;
+ }
+
+ comp_seq = find_complete_compose_sequence (compose_buffer);
+ if (comp_seq != NULL)
+ {
+ if (comp_seq->final != NULL) /* has a final form, don't commit yet */
+ {
+ commit_preceding_possible_final_form (context,
+ comp_seq->is_terminator);
+ clear_compose_buffer ();
+ preceding_possible_final_form = comp_seq;
+ g_signal_emit_by_name (context, "preedit-changed");
+ return TRUE;
+ }
+ else
+ {
+ commit_preceding_possible_final_form (context,
+ comp_seq->is_terminator);
+ g_signal_emit_by_name (context, "commit",
+ get_appropriate_string (comp_seq, is_initial));
+ clear_compose_buffer ();
+ g_signal_emit_by_name (context, "preedit-changed");
+ return TRUE;
+ }
+ }
+
+ /* if we reach this point, the sequence *with the key just pressed*
+ * cannot be a complete or incomplete match, so: commit the old sequence,
+ * then reprocess this key */
+
+ n_compose--;
+ compose_buffer[n_compose] = 0;
+
+ if (n_compose > 0)
+ {
+ comp_seq = find_complete_compose_sequence (compose_buffer);
+ commit_preceding_possible_final_form (context, comp_seq->is_terminator);
+ if (comp_seq->final != NULL)
+ {
+ clear_compose_buffer ();
+ preceding_possible_final_form = comp_seq;
+ }
+ else
+ {
+ g_signal_emit_by_name (context, "commit",
+ get_appropriate_string (comp_seq, is_initial));
+ clear_compose_buffer ();
+ g_signal_emit_by_name (context, "preedit-changed");
+ }
+
+ return mim_filter_keypress (context, event);
+ }
+ else
+ commit_preceding_possible_final_form (context, TRUE);
+
+ return no_sequence_matches (context, event);
+}
+
+
+static void
+mim_class_init (GtkIMContextClass *clazz)
+{
+ clazz->filter_keypress = mim_filter_keypress;
+ clazz->get_preedit_string = mim_get_preedit_string;
+ clazz->reset = mim_reset;
+}
+
+static void
+mim_init (GtkIMContext *im_context)
+{
+}
+
+
+static void
+mim_register_type (GTypeModule *module)
+{
+ static const GTypeInfo object_info =
+ {
+ sizeof (GtkIMContextClass),
+ (GBaseInitFunc) NULL,
+ (GBaseFinalizeFunc) NULL,
+ (GClassInitFunc) mim_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (GtkIMContext),
+ 0,
+ (GInstanceInitFunc) mim_init,
+ };
+
+ type_mim =
+ g_type_module_register_type (module,
+ GTK_TYPE_IM_CONTEXT,
+ "GtkIMContextYiddishNoah",
+ &object_info, 0);
+}
+
+
+static const GtkIMContextInfo mim_info =
+{
+ "mim", /* ID */
+ N_("MiM"), /* Human readable name */
+ GETTEXT_PACKAGE, /* Translation domain */
+ LOCALEDIR, /* Dir for bindtextdomain */
+ "zh_CN", /* Languages for which this module is the default */
+};
+
+
+static const GtkIMContextInfo *info_list[] =
+{
+ &mim_info,
+};
+
+
+void
+im_module_init (GTypeModule *module)
+{
+ mim_register_type (module);
+}
+
+void
+im_module_exit ()
+{
+}
+
+void
+im_module_list (const GtkIMContextInfo ***contexts, gint *n_contexts)
+{
+ *contexts = info_list;
+ *n_contexts = G_N_ELEMENTS (info_list);
+}
+
+
+GtkIMContext *
+im_module_create (const gchar *context_id)
+{
+ if (strcmp (context_id, "mim-n") == 0)
+ return GTK_IM_CONTEXT (g_object_new (type_mim, NULL));
+ else
+ return NULL;
+}
+
+
+
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